Frame of the office chair



FIG. 1 is a perspective view of a frame of the office chair showing my new design;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a left side elevational view thereof;

FIG. 5 is a right side elevational view thereof; and,

FIG. 6 is a top view thereof with no ornamentation being claimed for a bottom view thereof. 

The ornamental design for a frame of the office chair, as shown and described. 